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Diffstat (limited to 'compiler/typecheck/TcFlatten.hs')
| -rw-r--r-- | compiler/typecheck/TcFlatten.hs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/typecheck/TcFlatten.hs b/compiler/typecheck/TcFlatten.hs index 650cbd8219..1bb4a7165b 100644 --- a/compiler/typecheck/TcFlatten.hs +++ b/compiler/typecheck/TcFlatten.hs @@ -1132,7 +1132,7 @@ flatten_fam_app :: TyCon -> [TcType] -> FlatM (Xi, Coercion) -- flatten_exact_fam_app_fully lifts out the application to top level -- Postcondition: Coercion :: Xi ~ F tys flatten_fam_app tc tys -- Can be over-saturated - = ASSERT2( tyConArity tc <= length tys + = ASSERT2( tys `lengthAtLeast` tyConArity tc , ppr tc $$ ppr (tyConArity tc) $$ ppr tys) -- Type functions are saturated -- The type function might be *over* saturated |